WORMS. TESTACEA. 68. Mytitus. 



29. 



Hirundc. Shell fmooth ; the valves 2*lobed, lobe at thchinge longer 

 and thinner. 

 Lifter, tab. 2ZOi 224. Barbut. tab. ll. fig. 8* 

 Adansfeneg. I. tab. \$>fig. 6. 

 Argenv. conch, tab. 19. $. G»«Zf. ##• ***. 94* "• 

 Rumpf. Muf. tab. 46. G. /V//a/. dmb. tab % 19. Jig- 9' 

 jBo»«». recr. 2. fig. 58. M*/ Kirch, z.f. 57. 

 Klein ojir. tab. 2. fig. 1 3. /. 9./. 3 8 * 

 Knorr. delic Nat. tab. B, iv./ig. 7. 

 jKWr J^£». 4. tab. 8. fig. § and 5* /. JO./. I, 2. 

 C&/»». conch. 8. /*£. 8l.y%. 722— 725. 



2. C^/»»- «>»^ 8 - ^b. 8i./zg-. 726. 



3. C£«w». conch. 8. f«J, 8l,/?£. 727. 



.4/ GW/, tetf. **£• 94- A, Knorr. Vergn. 6* tab. 2* 

 Chemn. conch. 8. tab. 81 , fig. 7 Z %> 



5. Adansfeneg* 1. ^. *5»fig* 5* 



6, Chemn. conch. 10. tab. 171. fig* 1672* . 

 Inhabits the JW/*» American Mediterranean and Atlantic beds, m 



great varieties of fize thicknefs form colour and markings : 

 /W/ contra&ed at the bafe, with very fine and crowded tranf- 

 verle wrinkles j within pearly, 



Pbloadis* Shell oblong, more obtufe on the fore-part ? rough withf 



tranfverfe wrinkles, 

 It. Wgoth. tab. $.fiig. 22. 

 Mull. Zooh Dan. 3, /. 11. tab'. %"}.fig+ 1 — 3« 

 Chemn.concb. %. tab $2.fiig. 73$. 

 Inhabits the JWr£ &W. and penetrates beds of Coral and rockj 



like the Phloas: about if inch long and I J? broad: the ends 



not quite elofed ; hinge without teeth, or with a very imall 



one. 



Stridulus. Shell very finely ftriate ; the hinge terminal and 1 -toothed* 

 Born Muf. Cafi Find. tefi. tab. J. fig. 5 ?'- 

 Lhemn. conch. 8. tab. S3, fig. 744. a, b. 

 Schrcet. Einl. in conch. 3, t. 9./. 16. 



Inhabits the Northern and Indian Seas i i\ inch long and l| 

 broad :^//femilunar, dilated on the fo e-part, -fubdiaphanous, 

 chefnut v the margin very finely crenate outwardly 



Vul 



igaris. 



Shell flattim on one fide and inflected, with convergent in- 

 curved beaks: hinge t -toothed. 

 Chemn. conch. 8. tab. 8 2. Jig. 732, 



Inhabits the American Ocean: within pale clay-col jur covered 

 with a brown coat or iki£„ 



hcatut. 



Shell rhombic inequilateral, tranfverfely ftriate and wrink« 

 ■ led : beaks incurved, 



Qljmn* 



